Improvement in safety-bolts



W. BRENTON.

SafetyBolt I No. 215,503. Patented May 20,1879.

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s a a N w w f m on X UNITED STATES PATENT OFFICE.

WILLIAM BRENTON, ()F POLBATHIO, sTGrEltMANs, COUNTY OF CORNWALL,ENGLAND.

IMPROVEMENT IN SAFETY-BOLTS.

Specification forming part of Letters Patent No. 215,503, dated May 20,1879; application filed February 20, 1879. I

To all whom it may concern:

Be it known that I, WILLIAM BRENTON, of Polbathic, St. Germans, in thecounty of Cornwall, England, have invented an Improved SafetyBolt orLockPin, of which the following is a specification.

This invention consists in the construction of a simple, strong, andefficient safety -bolt, specially applicable for stable and cattlehousedoors, railway-gates, and also for securing dwelling-house doors on theinside, also servin g as a lock-pin for various other purposes.

In carrying out my invention I employ a rod or bolt moving in staples oreyes on a plate, as hitherto; but the outer staple is elongated downwardand provided with an additional eye underneath the eye in which the boltmoves, and thus forms an eccentric to the bolt. The outer or handle endof the bolt is turned up at right angles and formed into a hook. By thisconstruction, if the bolt is in its opened position, and the end thereofin its vertical or raised position, the bolt can be moved forward, sothat the free end thereof will pass into the staple on the door front orframe. Then by rotating the bolt the hooked end thereof will pass overthe hereinbeforedescribed elongated or eccentric staple, and the boltwill be secured from moving laterally,

and a pivoted stop or catch is provided, by turning which the handle endof the bolt is prevented from rotating. Further, if neces. sary to lockthe bolt, a padlock is passed through the lower eye of theeccentric-staple, whereby the safety-bolt serves in addition thepurposes of the ordinary padlock hasp and staple.

To open the bolt, the action is the, reverse of that hereinbeforedescribed, a suitable stop being provided to limit the play of the bolt,and prevent it being drawn out of the staples.

This construction of bolt also serves as a lock-pin for variouspurposes-such, for instance, as for securin g the pieces of corrugatediron forming rick coverings, and for other uses where bolts and loekpinsare required.

But to make my invention better under stood, I will proceed to describethe same by reference to the accompanying drawings, in WhiGh- Figure 1is an elevation of my improved safety-bolt open; Figs. 2 and 3, endviews of same; Fig. 4, elevation showing the bolt raised and movedforward; Fig. 5, end view of same; Fig. 6, elevation showing the hookedend of the bolt turned down over the eccentric-staple; Fig. 7, end viewof the same; Fig. 8, elevation showing the bolt secured by the stop orcatch; 9, end view of same; Fig. 10, elevation showing the bolt securedby a padlock; Fig. 11, end view of same; Fig. 12, detached view of theeccentric-staple.

Similar letters of reference are used to represent similar parts.

a is the rod or bolt; 1) b, the eyes or staples on the plate 0, securedto the door A in the usual manner. (I is the staple on the door jamb B.It will be seen that the outer staple, b, has two eyes, c and f, thebolt to moving in the eye 6, the staple b thus forming an eccentric tothe bolt a.

g is the hooked end of the bolt. h is the pivoted stop or catch. 11 isthe usual stop for limiting the play of the bolt.

The bolt being in the position shown in Figs. 1, 2, and 3 1s closed asfollows: by first rotating the bolt, so as to move the hooked endthereof into the vertical position as shown by the dotted lines in Figs.1 and 3, and the bolt is then moved forward into the position shown inFigs. 4 and 5. The bolt is then turned down, and the hook g thereof willpass over the eccentric-staple b, as shown in Figs. 6 and 7, and thebolt will be prevented from moving laterally. The stop or catch h is nowturned into.the horizontal position, as shown in Figs. 8 and 9, and thebolt will be securely fixed and prevented from rotating.

In Figs. 10 and 11 the bolt is shown secured ,by a padlock, 0, passedthrough the lower eye, f, of the eccentric-staple b.

It will be seen, by reference to Fig. 1, that the stop h also serves tokeep the bolt from being accidentally shot or shaken out of its openposition.

To open the bolt the action will be the re verse of that hereinbeforedescribed.

Having thus described my invention and the manner of performing thesame, I wish it to be understood that I do not confine myself to theprecise details herein laid down and shown in the drawings, as the samemay be varied without departing from the peculiar character of theinvention; but

What I claim is- 1. A bolt having a hooked unclosed end, in combinationwith an eccentric-staple, as and for the purpose hereinbefore described.

2. The combination of the eccentric-staple, a bolt having an unclosedhooked end, and a turning or pivoted stop or catch for preventing therotation of the bolt, as hereinbet'ore described.

3. The eccentric-staple I), having alower eye or opening at one sidethereof for receiving a padlock and another opening or eye, a, near itsother side for receiving the bolt, as and for the purposes hereinbeforedescribed.

4. The improved safety-bolt or lock-pin shown and described, consistingof the baseplate A, bolt a, with its hooked end g, eccentrio 1), withits holes e and f, and the pivoted stop h, substai'itially as set forth.

WM. BRENTON.

Witnesses:

RICHARD POLGREEN, Of St. Germans, Cornwall, Surveyor.

JAMES ALFRED PEARCE,

Of Princess Place Chambers, Plymouth, Ac-

countant.

